What model describes the relationship between the amount of money in an account and time, given that the money doubles every month?
linear
quadratic
cubic
exponential

The model that describes the relationship between the amount of money in an account and time, given that the money doubles every month is:

                           Exponential

Step-by-step explanation:

Let the initial amount of money be: x

and so on,

Hence, the amount of money in nth month is:

As the amount of money increases by a fixed multiplicative rate i.e. 2.

                Hence, the model is:

                     Exponential.

paula, cory, and krista

what i would say the best answer is a. 40.5